EP0494703A3 - Particles containing iron carbide - Google Patents

Particles containing iron carbide Download PDF

Info

Publication number
EP0494703A3
EP0494703A3 EP19920105932 EP92105932A EP0494703A3 EP 0494703 A3 EP0494703 A3 EP 0494703A3 EP 19920105932 EP19920105932 EP 19920105932 EP 92105932 A EP92105932 A EP 92105932A EP 0494703 A3 EP0494703 A3 EP 0494703A3
Authority
EP
European Patent Office
Prior art keywords
particles containing
containing iron
iron carbide
carbide
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19920105932
Other languages
English (en)
Other versions
EP0494703A2 (fr
Inventor
Takuya Arase
Yoshiyuki Shibuya
Shigeo Daimon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP60290989A external-priority patent/JPS62148313A/ja
Priority claimed from JP61158369A external-priority patent/JPH0635326B2/ja
Priority claimed from JP61211200A external-priority patent/JPS6369706A/ja
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP0494703A2 publication Critical patent/EP0494703A2/fr
Publication of EP0494703A3 publication Critical patent/EP0494703A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/20—Carbon compounds
    • B01J27/22—Carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/907—Oxycarbides; Sulfocarbides; Mixture of carbides
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70615—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Fe metal or alloys
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compounds Of Iron (AREA)
EP19920105932 1985-12-24 1986-12-23 Particles containing iron carbide Withdrawn EP0494703A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP60290989A JPS62148313A (ja) 1985-12-24 1985-12-24 炭化鉄を含有する針状粒子及びその製造方法
JP290989/85 1985-12-24
JP158369/86 1986-07-04
JP61158369A JPH0635326B2 (ja) 1986-07-04 1986-07-04 炭化鉄を含有する粒子の製造法
JP61211200A JPS6369706A (ja) 1986-09-08 1986-09-08 炭化鉄を含有する針状粒子の製法
JP211200/86 1986-09-08

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP86117953.9 Division 1986-12-23

Publications (2)

Publication Number Publication Date
EP0494703A2 EP0494703A2 (fr) 1992-07-15
EP0494703A3 true EP0494703A3 (en) 1992-12-09

Family

ID=27321340

Family Applications (3)

Application Number Title Priority Date Filing Date
EP19920105932 Withdrawn EP0494703A3 (en) 1985-12-24 1986-12-23 Particles containing iron carbide
EP86117953A Expired - Lifetime EP0227104B1 (fr) 1985-12-24 1986-12-23 Particules contenant du carbure de fer
EP92105931A Expired - Lifetime EP0494095B1 (fr) 1985-12-24 1986-12-23 Particules contenant de carbure de fer

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP86117953A Expired - Lifetime EP0227104B1 (fr) 1985-12-24 1986-12-23 Particules contenant du carbure de fer
EP92105931A Expired - Lifetime EP0494095B1 (fr) 1985-12-24 1986-12-23 Particules contenant de carbure de fer

Country Status (3)

Country Link
US (2) US4900464A (fr)
EP (3) EP0494703A3 (fr)
DE (2) DE3686995T2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059337A (en) * 1987-09-22 1991-10-22 Hitachi Maxell, Ltd. Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms
JPH0729763B2 (ja) * 1987-10-13 1995-04-05 ダイキン工業株式会社 炭化鉄微粒子及びその製造法
JPH0729765B2 (ja) * 1988-01-27 1995-04-05 ダイキン工業株式会社 炭化鉄微粒子及びその製造方法
JPH0230626A (ja) * 1988-04-28 1990-02-01 Daikin Ind Ltd 炭化鉄微粒子及びその製造法
JPH085651B2 (ja) * 1990-07-02 1996-01-24 ダイキン工業株式会社 炭化鉄微粒子の製造方法
KR960016463B1 (ko) * 1992-01-22 1996-12-12 다이킨 고교 가부시키가이샤 금속철, 탄화철 및 탄소를 함유하는 침상 미립자, 그 제조법, 그것을 함유하는 자성도료 조성물 및 자기기록매체
US5387274A (en) * 1993-11-15 1995-02-07 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of iron carbide
US5869018A (en) 1994-01-14 1999-02-09 Iron Carbide Holdings, Ltd. Two step process for the production of iron carbide from iron oxide
JP2727436B2 (ja) * 1995-05-31 1998-03-11 川崎重工業株式会社 鉄カーバイドの製造方法及び製造装置
AU750751B2 (en) 1998-03-31 2002-07-25 Iron Carbide Holdings, Ltd Process for the production of iron carbide from iron oxide using external sources of carbon monoxide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123318A2 (fr) * 1983-04-25 1984-10-31 Daikin Kogyo Co., Ltd. Matériau comportant des particules aciculaires contenant du carbure de fer
GB2156836A (en) * 1984-04-05 1985-10-16 Tdk Corp Magnetic recording medium
EP0179490A2 (fr) * 1984-10-25 1986-04-30 Daikin Industries, Limited Particules contenant un carbure de fer, procédé de production et utilisation de celles-ci
EP0180162A2 (fr) * 1984-10-25 1986-05-07 Daikin Industries, Limited Procédé pour produire des particules aciculaires contenant un carbure de fer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042174B2 (ja) * 1980-11-27 1985-09-20 堺化学工業株式会社 針状酸化第二鉄の製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0123318A2 (fr) * 1983-04-25 1984-10-31 Daikin Kogyo Co., Ltd. Matériau comportant des particules aciculaires contenant du carbure de fer
GB2156836A (en) * 1984-04-05 1985-10-16 Tdk Corp Magnetic recording medium
EP0179490A2 (fr) * 1984-10-25 1986-04-30 Daikin Industries, Limited Particules contenant un carbure de fer, procédé de production et utilisation de celles-ci
EP0180162A2 (fr) * 1984-10-25 1986-05-07 Daikin Industries, Limited Procédé pour produire des particules aciculaires contenant un carbure de fer

Also Published As

Publication number Publication date
EP0494095A2 (fr) 1992-07-08
EP0494095A3 (en) 1992-12-09
DE3686995T2 (de) 1993-05-06
US5437805A (en) 1995-08-01
EP0494703A2 (fr) 1992-07-15
DE3686995D1 (de) 1992-11-26
EP0494095B1 (fr) 1994-06-01
EP0227104B1 (fr) 1992-10-21
US4900464A (en) 1990-02-13
EP0227104A3 (en) 1989-08-09
DE3689890T2 (de) 1995-01-12
EP0227104A2 (fr) 1987-07-01
DE3689890D1 (de) 1994-07-07

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